Conveying channel size adjustment device and flatware washer
By connecting the carrier plate and the guide mechanism through the slots and rods, the width of the conveying channel of the flatbed washing machine can be flexibly adjusted, solving the problems of time-consuming and labor-intensive disassembly and assembly of the guide wheel and pollution in traditional technology, thus improving production efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional flatbed washing machines require disassembly and adjustment of guide wheels to accommodate products of different sizes during product changeovers, resulting in a heavy workload for workers, low production efficiency, and easy product contamination.
The conveyor channel size adjustment device, which uses a carrier plate and a guiding mechanism, allows for flexible adjustment of the conveyor channel width through the detachable connection of the insertion slot and the carrier rod, avoiding the need to disassemble and assemble the guide wheel.
It reduced the labor intensity of workers, shortened downtime, avoided product contamination, and improved production efficiency and equipment stability.
Smart Images

Figure CN224586529U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of cleaning equipment, and in particular to a conveyor channel size adjustment device and a flatbed cleaning machine. Background Technology
[0002] Flatbed washing machines are specialized equipment for cleaning flat objects. Depending on the application, the objects they clean include electronic screens, industrial sheets, pallets, etc. To improve cleaning efficiency, flatbed washing machines typically have multiple conveyor channels arranged side by side. Each conveyor channel is equipped with rotatable conveyor rollers to drive the product within the channel. Additionally, guide wheels are installed to contact the sides of the product, thus limiting its lateral movement.
[0003] However, when the flatbed washing machine is changed to a different model and needs to transport larger or smaller products, the installation position of the guide rollers needs to be disassembled and adjusted to adjust the width between adjacent rows of guide rollers to adapt to the width of products of different sizes. This operation requires disassembling and assembling a large number of guide rollers, resulting in a large workload for workers, wasting time and effort, and long downtime of equipment, which affects production efficiency. In addition, the stability of the guide rollers deteriorates after disassembly and reassembly, requiring a large number of test pieces to ensure reliability through trial runs, which further affects production efficiency. Moreover, the disassembly and reassembly of guide rollers introduces dirt, which can easily contaminate the products. Utility Model Content
[0004] Therefore, it is necessary to provide a conveyor channel size adjustment device and a flatbed cleaning machine to address the problems of traditional technologies being time-consuming and labor-intensive, affecting production efficiency, and causing product contamination.
[0005] A first aspect of this application provides a conveyor channel size adjustment device, comprising:
[0006] A carrier plate, which is mounted on a cleaning tank, has multiple insertion slots arranged at intervals along the width of the conveying channel; and
[0007] A guiding mechanism, comprising a carrier rod and a guiding assembly, wherein the carrier rod is detachably snapped into any of the said insertion slots, and the guiding assembly is mounted on the carrier rod and is used to guide products moving along the conveying channel.
[0008] When in use, the conveyor channel size adjustment device of this solution is installed in the cleaning tank cavity of the cleaning tank. It can form a conveyor channel by being arranged side by side with a row of guide rollers in the cleaning tank cavity, and / or by two adjacent conveyor channel size adjustment devices arranged side by side with intervals. The conveyor channel is used to transport the products to be cleaned so that the products can be cleaned by cleaning components such as air knives. When changing products of different sizes during a changeover, since the carrier plate has multiple insertion slots arranged at intervals along the width direction of the conveyor channel, the carrier rod is removed from the current insertion slot and a suitable insertion slot is selected. Then the carrier rod is inserted into the new insertion slot, which can increase or decrease the distance between the guide mechanism and the guide rollers or between two adjacent guide mechanisms. This achieves the purpose of flexibly adjusting the width of the conveyor channel to adapt to products of different sizes. Compared to traditional technologies, this solution allows for easy and labor-saving adjustment of the conveyor channel width simply by removing the loading plate to assemble with different insertion slots. This reduces the workload for workers and minimizes downtime. Furthermore, adjusting the conveyor channel width does not require disassembling, adjusting, or cleaning the existing conveyor rollers and guide rollers inside the tank, further reducing the workload for workers and shortening downtime. It also eliminates the need for test runs to ensure stability and prevents the introduction of dirt that could contaminate the product.
[0009] The technical solution of this application will be further described below:
[0010] In one embodiment, the insertion slot is vertically oriented, and in the installed and used state, the opening of the insertion slot faces upward.
[0011] In one embodiment, two carrier plates are provided, one carrier plate is arranged at a first end in the length direction of the carrier rod and is detachably connected to the first end, and the other carrier plate is arranged at a second end in the length direction of the carrier rod and is detachably connected to the second end.
[0012] In one embodiment, a plug plate is provided at the end of the carrier rod along its length, and the plug plate is detachably inserted into the plug slot.
[0013] In one embodiment, the width of the insertion slot is equal to the thickness of the insertion plate.
[0014] In one embodiment, the insert plate is completely housed inside the insertion slot; or, the side of the insert plate away from the bottom wall of the insertion slot is flush with the opening of the insertion slot.
[0015] In one embodiment, multiple guide components are provided, which are arranged side by side at intervals on the carrier rod and along the product conveying direction within the conveying channel.
[0016] In one embodiment, the guiding assembly includes a support shaft and a guide wheel. The support shaft is disposed below the carrier rod and one end is mounted on the carrier rod. The guide wheel is rotatably mounted on the other end of the support shaft and is used to make rolling contact with the product moving within the conveying channel.
[0017] In one embodiment, the guide assembly further includes a stop member mounted on the end of the support shaft away from the carrier rod, and the stop member engaging with the guide wheel;
[0018] And / or, the diameter of the guide wheel is designed to be smaller than the distance between two adjacent conveying rollers in the cleaning tank, and the lowest point of the guide wheel is lower than the highest point of the conveying roller;
[0019] Alternatively, the guide wheel may be made of a flexible material, or a flexible sleeve may be fitted onto the surface of the guide wheel.
[0020] A second aspect of this application also proposes a flatbed cleaning machine, comprising:
[0021] A cleaning tank, wherein a plurality of conveying rollers and guide rollers are rotatably mounted, the plurality of conveying rollers being arranged in at least one column along the product conveying direction, and the plurality of guide rollers being arranged in at least one column along the product conveying direction, the column of conveying rollers and the column of guide rollers being arranged side by side along the width direction of the cleaning tank; and
[0022] At least one conveying channel size adjustment device as described in any of the above embodiments, at least one of the conveying channel size adjustment devices is installed on the cleaning tank, the conveying channel size adjustment device and the row of guide rollers are spaced apart and form a conveying channel for conveying products, and / or two adjacent conveying channel size adjustment devices are spaced apart and form a conveying channel for conveying products. Attached Figure Description
[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1This is an isometric structural schematic diagram of a flatbed cleaning machine according to one embodiment.
[0026] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0027] Figure 3 This is a side view of the flatbed cleaning machine.
[0028] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0029] Figure 5 This is a schematic diagram of the structure of a conveyor channel size adjustment device according to one embodiment.
[0030] Figure 6 This is a schematic diagram of the structure of a guide component according to one embodiment.
[0031] Explanation of reference numerals in the attached figures:
[0032] 100. Flatbed washing machine; 10. Conveyor channel size adjustment device; 11. Carrier plate; 111. Insertion groove; 12. Guide mechanism; 121. Carrier rod; 122. Guide assembly; 1221. Support shaft; 1222. Guide wheel; 1223. Stop; 123. Insert plate; 20. Washing tank; 21. Conveyor roller; 22. Guide roller; 30. Conveyor channel. Detailed Implementation
[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0039] See Figure 1 The above is an embodiment of a flatbed cleaning machine 100, which can be applied to cleaning operations to remove dust and other impurities from the surface of products, so as to ensure the cleanliness of the products.
[0040] Please continue reading. Figures 1 to 4For example, the flatbed washing machine 100 includes a washing tank 20, in which a plurality of conveying rollers 21 and guide rollers 22 are rotatably mounted. The plurality of conveying rollers 21 are arranged in at least one column along the product conveying direction, and the plurality of guide rollers 22 are arranged in at least one column along the product conveying direction. A column of conveying rollers 21 and a column of guide rollers 22 are arranged side by side along the width direction of the washing tank 20.
[0041] Specifically, the cleaning tank 20 has multiple rotatable shafts running through its walls, arranged side-by-side at intervals along the product conveying direction. Each shaft is equipped with at least one conveying roller 21 and a guide roller 22. The shaft is connected to a drive motor via a transmission chain mechanism or a transmission gear mechanism to obtain the rotational driving force output by the drive motor, thereby driving the conveying roller 21 and the guide roller 22 to rotate.
[0042] The product is placed on the surface of the conveyor roller 21. The rotating conveyor roller 21, aided by friction, can push the product to move in parallel, thus enabling the product to be conveyed within the conveying channel 30.
[0043] Optionally, the conveyor roller 21 may be made of a soft material such as rubber at least for the circumferential part that contacts the product, so as to avoid abrasion of the product's surface.
[0044] Furthermore, the flatbed washing machine 100 also includes at least one conveyor channel size adjustment device 10, which is mounted on the washing tank 20. The conveyor channel size adjustment device 10 and a row of guide rollers 22 are spaced apart and form a conveyor channel 30 for conveying products, and / or two adjacent conveyor channel size adjustment devices 10 are arranged side by side at intervals to form a conveyor channel 30 for conveying products. The conveyor channel 30 is used to accommodate products to be cleaned, and the products to be cleaned can be conveyed and moved along the conveyor channel 30.
[0045] Please continue reading. Figure 2 , Figure 3 and Figure 5 In one embodiment, the conveying channel size adjustment device 10 includes a carrier plate 11 and a guide mechanism 12.
[0046] In use, the carrier plate 11 is used to install on the cleaning tank 20. For example, the carrier plate 11 can be installed and fixed on the partition of the cleaning tank 20 by at least one of the following methods: welding, snap-fit, screwing.
[0047] The carrier plate 11 has multiple insertion slots 111, which are arranged at intervals along the width direction of the conveying channel 30. The guide mechanism 12 includes a carrier rod 121 and a guide assembly 122. The carrier rod 121 can be detachably snapped into any insertion slot 111, and the guide assembly 122 is installed on the carrier rod 121 and is used to guide the product moving along the conveying channel 30.
[0048] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: When the conveying channel size adjustment device 10 of this solution is used, it is installed in the cleaning tank cavity of the cleaning tank body 20. It can form a conveying channel 30 by being arranged side by side with a row of guide rollers 22 in the cleaning tank cavity, and / or by two adjacent conveying channel size adjustment devices 10 arranged side by side with intervals. The conveying channel 30 is used to convey the products to be cleaned so that the products can receive the cleaning operation of cleaning components such as air knives; when changing models... To accommodate products of different sizes, the carrier plate 11 has multiple insertion slots 111 spaced apart along the width of the conveying channel 30. After removing the carrier rod 121 from the current insertion slot 111, a suitable insertion slot 111 is selected, and then the carrier rod 121 is inserted into the new insertion slot 111. This allows for adjusting the distance between the guide mechanism 12 and the guide roller 22, or between two adjacent guide mechanisms 12, thereby flexibly adjusting the width of the conveying channel 30 to suit products of different sizes.
[0049] Compared to traditional technologies, this solution allows for easy and labor-saving adjustment of the width of the conveyor channel 30 simply by removing the loading plate 11 to assemble with different insertion slots 111. This reduces the workload for workers and minimizes downtime. Furthermore, adjusting the width of the conveyor channel 30 does not require disassembling, adjusting, or cleaning the existing conveyor rollers 21 and guide rollers 22 inside the tank 20. This further reduces the workload for workers, shortens downtime, and eliminates the need for test runs to ensure stability, preventing the introduction of dirt and contamination of the product.
[0050] Based on the above embodiment, the insertion slot 111 is vertically oriented, and in the installed and used state, the opening of the insertion slot 111 faces upward. That is, the opening of the insertion slot 111 is aligned with the opening direction of the cleaning chamber of the cleaning tank body 20, both facing upward. Thus, when the guide mechanism 12 needs to be disassembled, simply pull the support rod 121 upward, and the support rod 121 can be removed from the insertion slot 111; when a new insertion slot 111 is selected, simply press the support rod 121 downward, and the support rod 121 can be quickly and easily snapped into the insertion slot 111. Therefore, setting the opening of the insertion slot 111 upward greatly improves the convenience and user experience of disassembling and assembling the support rod 121.
[0051] Understandably, the carrier plate 11 is installed and fixed on the partition of the cleaning tank 20. Therefore, after the guide mechanism 12 is engaged with the insertion slot 111 through the carrier rod 121, the carrier plate 11 can support and position the guide mechanism 12 in the cleaning tank cavity of the cleaning tank 20, and the carrier plate 11 can load and fix the guide mechanism 12.
[0052] For example, if the width of the conveying channel 30 is 300mm, the spacing of the insertion slots 111 is set to 5mm, and the number of insertion slots 111 is 20, then the guide mechanism 12 can adjust the insertion slots 111 step by step between 5mm and 100mm. Each time an adjacent insertion slot 111 is adjusted, the width of the conveying channel 30 becomes 295mm, 290mm, 285mm, etc.
[0053] Please continue reading. Figure 3 and Figure 5 Furthermore, to improve the stability and reliability of the guide mechanism 12 installation, in another embodiment, two carrier plates 11 are provided. One carrier plate 11 is arranged at the first end of the carrier rod 121 along its length and is detachably connected to the first end. The other carrier plate 11 is arranged at the second end of the carrier rod 121 along its length and is detachably connected to the second end. Therefore, by configuring two carrier plates 11 for one guide mechanism 12, the two carrier plates 11 respectively support the opposite ends of the guide mechanism 12, achieving a better support and fixation effect. This prevents the guide assembly 122 from being tilted due to unstable installation, which could cause excessive pressure on the product and damage it.
[0054] Please continue reading. Figure 2 and Figure 5 To facilitate the detachable installation of the carrier rod 121 and the insertion slot 111, in one embodiment, an insertion plate 123 protrudes from the end of the carrier rod 121 along its length, and the insertion plate 123 is detachably inserted into the insertion slot 111. With this configuration, the dimensions of the carrier plate 11, the insertion slot 111, and the insertion plate 123 do not need to be excessively large, avoiding occupying too much installation space in the cleaning tank cavity. Furthermore, the size of the insertion plate 123 can be designed to be smaller than the main rod portion of the carrier rod 121. After the insertion plate 123 is inserted into the insertion slot 111, it is positioned by abutting against the main rod portion. In addition, making the main rod portion slightly larger ensures sufficient structural strength for the guide mechanism 12 and provides a larger installation area for assembling the carrier rod 121 and the guide assembly 122.
[0055] For example, in this application, the insertion slot 111 is a rectangular slot; correspondingly, the insertion plate 123 is a rectangular plate.
[0056] It should be noted that the insert plate 123 is preferably installed at the center of the end face of the carrier rod 121, which makes it easier to calculate the width of the conveying channel 30.
[0057] Furthermore, based on any of the above embodiments, the width of the slot 111 is equal to the thickness of the insert plate 123. This allows the sidewall of the rectangular slot to be more firmly and tightly engaged with the surface of the insert plate 123, ensuring that the insert plate 123 is securely and reliably engaged within the slot 111.
[0058] Furthermore, in another embodiment, the insert plate 123 is completely housed within the insertion slot 111; or, the side of the insert plate 123 away from the bottom wall of the insertion slot 111 is flush with the opening of the insertion slot 111. This ensures that the insert plate 123 and the side wall of the insertion slot 111 have the maximum engagement area, thereby improving the stability of the mounting. Moreover, the design must consider potential interference from structural components such as the air knife and brush within the work area; therefore, avoiding the insert plate 123 extending beyond the insertion slot 111 allows for better control of the height of the support rod 121, preventing contact interference between the support rod 121 and structural components such as the air knife.
[0059] It should be noted that when the insert plates 123 at both ends of the length direction of the carrier rod 121 are snapped together, they need to be flush to ensure that the guide mechanism 12 remains horizontal after installation, so that the guide assembly 122 can effectively guide and contact the side of the product.
[0060] In order to prevent lateral deviation from occurring when the product is conveyed and moved within the conveying channel 30, which could lead to a skewed movement path and cause problems such as jamming, in one embodiment, multiple guide components 122 are provided. The multiple guide components 122 are arranged side by side at intervals on the carrier rod 121 and are arranged along the product conveying direction within the conveying channel 30.
[0061] Please continue reading. Figure 2 ,as well as Figures 4 to 6 For example, in an optional embodiment, the guide assembly 122 includes a support shaft 1221 and a guide wheel 1222. The support shaft 1221 is arranged below the carrier rod 121 and one end is mounted on the carrier rod 121. The guide wheel 1222 is rotatably mounted on the other end of the support shaft 1221. The guide wheel 1222 is used to make rolling contact with the product moving within the conveying channel 30. The support shaft 1221 is mounted to the carrier rod 121 to achieve overall assembly and fixation of the guide assembly 122 and the carrier rod 121. The guide wheel 1222 is rotatably mounted to the support shaft 1221 so that the guide wheel 1222 can rotate when it contacts the product moving within the conveying channel 30, satisfying the guiding and limiting function of the guide wheel 1222 on the product, while avoiding excessive contact friction that could scratch the product.
[0062] Considering that the guide assembly 122 is vertically installed below the carrier rod 121, in order to prevent the guide wheel 1222 from becoming loose and falling off the support shaft 1221 under the action of gravity and the scratching force applied by the product, in one embodiment, the guide assembly 122 further includes a stop 1223, which is installed at the end of the support shaft 1221 away from the carrier rod 121 and is in contact with the guide wheel 1222.
[0063] For example, the stop 1223 can be, but is not limited to, an elastic retaining ring, a nut, an end sleeve, etc.
[0064] Furthermore, the diameter of the guide wheel 1222 is designed to be smaller than the distance between two adjacent conveying rollers 21 within the cleaning tank 20. This ensures that when the guiding mechanism 12 is installed into the cleaning tank 20, the guide wheel 1222 avoids interference with the conveying rollers 21.
[0065] Furthermore, the lowest point of the guide wheel 1222 is lower than the highest point of the conveyor roller 21. This arrangement ensures that the guide wheel 1222 and the conveyor roller 21 are intersecting along the product conveying direction. When the product is conveyed and moved within the conveying channel 30, its side portion can contact the middle position of the guide wheel 1222, ensuring that the guide wheel 1222 can provide better guidance and limiting for the product, and preventing the product from getting stuck between the guide wheel 1222 and the conveyor roller 21 during operation.
[0066] To prevent excessive hardness of the guide wheel 1222 from damaging the product's appearance, the guide wheel 1222 is made of a flexible material, or a flexible sleeve is fitted onto the wheel surface of the guide wheel 1222. For example, the flexible material and the flexible sleeve can be, but are not limited to, rubber.
[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A conveyor passage size adjustment device, characterized by, include: A carrier plate is used to be installed on a cleaning tank. The carrier plate has multiple insertion slots, which are arranged at intervals along the width direction of the conveying channel. as well as A guiding mechanism, comprising a carrier rod and a guiding assembly, wherein the carrier rod is detachably snapped into any of the said insertion slots, and the guiding assembly is mounted on the carrier rod and is used to guide products moving along the conveying channel.
2. The delivery passage size adjustment device according to claim 1, characterized by The insertion slot is vertically oriented, and in the installed and used state, the opening of the insertion slot faces upward.
3. The delivery passage size adjustment device according to claim 1, characterized by Two carrier plates are provided, one of which is arranged at the first end of the carrier rod along its length and is detachably connected to the first end, and the other carrier plate is arranged at the second end of the carrier rod along its length and is detachably connected to the second end.
4. The delivery channel sizing device of any of claims 1 to 3, wherein, The end of the carrier rod along its length is provided with a protruding insert plate, which is detachably inserted into the insertion slot.
5. The delivery passage size adjustment device according to claim 4, characterized in that, The width of the insertion slot is equal to the thickness of the insertion plate.
6. The delivery passage size adjustment device according to claim 5, characterized by The insert plate is completely housed inside the insertion slot; or, the side of the insert plate away from the bottom wall of the insertion slot is flush with the opening of the insertion slot.
7. The conveyor lane sizing apparatus of claim 1, wherein, Multiple guide components are provided, and the multiple guide components are arranged side by side at intervals on the carrier rod and arranged along the product conveying direction in the conveying channel.
8. The delivery channel size adjustment device of claim 7, wherein, The guiding assembly includes a support shaft and a guide wheel. The support shaft is arranged below the carrier rod and one end is mounted on the carrier rod. The guide wheel is rotatably mounted on the other end of the support shaft and is used to make rolling contact with the product moving in the conveying channel.
9. The delivery passage size adjustment device of claim 8, wherein, The guide assembly further includes a stop, which is installed at the end of the support shaft away from the carrier rod, and the stop engages with the guide wheel. And / or, the diameter of the guide wheel is designed to be smaller than the distance between two adjacent conveying rollers in the cleaning tank, and the lowest point of the guide wheel is lower than the highest point of the conveying roller; Alternatively, the guide wheel may be made of a flexible material, or a flexible sleeve may be fitted onto the surface of the guide wheel.
10. A flatware washer characterized by, include: A cleaning tank is provided, in which a plurality of conveying rollers and guide rollers are rotatably mounted. The plurality of conveying rollers are arranged in at least one column along the product conveying direction, and the plurality of guide rollers are arranged in at least one column along the product conveying direction. The column of conveying rollers and the column of guide rollers are arranged side by side along the width direction of the cleaning tank. as well as At least one conveying channel size adjustment device as described in any one of claims 1 to 9, wherein at least one of the conveying channel size adjustment devices is installed on the cleaning tank, the conveying channel size adjustment device and the row of guide rollers are spaced apart and form a conveying channel for conveying products, and / or two adjacent conveying channel size adjustment devices are spaced apart and form a conveying channel for conveying products.